<template>
  <div class="update-name">
    <van-nav-bar
        title="设置昵称" 
        left-text="取消" 
        right-text="完成"
        @click-left="$emit('close')"
        @click-right="onConfirm"
    />
    <div class="field-wrap">
      <van-field
        v-model.trim="localName"
        rows="2"
        autosize
        type="textarea"
        maxlength="7"
        placeholder="请输入昵称"
        show-word-limit
      />
    </div>
  </div>
</template>

<script>
import { updateUserprofile } from '@/api/user.js'
export default {
  name: 'UpdateName',
  props: {
    value:{
      type:String,
      required:true
    }
  },
  data() {
    return {
      localName: this.value
    }
  },
  methods:{
    async onConfirm(){
      this.$toast.loading({
        message: '保存中...',
        forbidClick: true, // 禁止背景点击
        duration: 0 // 持续展示
      })
      try {
        const localName = this.localName
        if(!localName.length){
          this.$toast('昵称不能为空')
          return
        }

        await updateUserprofile({
          name:localName
        })
        // 更新视图
        this.$emit('input',localName)
        // 关闭弹层
        this.$emit('close')
        // 提示成功
        this.$toast.success('更新成功')
      } catch (error) {
        this.$toast.fail('更新失败')
      }
    }
  }
}
</script>

<style lang="less" scoped>
.field-wrap {
  padding: 20px;
}
</style>